Each week we scour the internet to find the best stories on technology, digital living and news of note. This week features a safer GPS, technology that can read fingerprints even if they’ve been wiped away, and contact lenses that can zoom in and out. All that and more in this edition of Mozy’s Technically Speaking.

Garmin Creates GPS that Projects Onto Windshields

These days drivers have so many choices when it comes to choosing a GPS for their cars. There’s the built-in versions, the hang-on-the-windshield types, smartphone apps, and more. Garmin, one of the leaders in the GPS industry, has developed new technology aimed to make navigation safer and more useful, according to VentureBeat. The “Heads Up Display”, or HUD, connects to Garmin’s StreetPilot and Navigon apps via bluetooth and projects the navigation information onto the car windshield, keeping details in the driver’s line of sight. The cost of the HUD is $130, and it has to be paired with Garmin’s apps.

Contact Lens Allows Wearers to Zoom in and Out

It’s still in the testing phases, but if all goes well there will soon be a contact lens on the market that will give wearers the ability to zoom in and out on focal points. Nic Halverson of Mashable reports that “the telescopic lens is just over a millimeter thick and is composed of a central unmagnified optical path, surrounded by a ring of movable components that magnify the view 2.8 times.” The creators of the lens have been testing the technology using a pair of Samsung 3D television glasses. Although the prototype is still attached to the glasses, researchers are hopeful further testing will result in being able to bring the lens to market.

Apple’s New Macbook Air has All-Day Battery Life

On first glance, Apple’s new Macbook Air model doesn’t appear to be much different than the original design created two-and-a-half years ago. But it’s not the look that has techies excited about the product–it’s the life of the battery. According to Brooke Crothers of CNET the original 13-inch Macbook Air battery ran for 7 hours and 27 minutes, and the new version goes for 14 hours and 25 minutes. The design of the computer hasn’t changed, nor has the resolution of the screen, making the battery life the major upgrade for the 2013 model.

New Fingerprint Technology Can Provide ID Even if Surface has Been Wiped

Although it seems like something from the television show CSI rather than real police labs, a new form of fingerprint technology is making things tougher on criminals. TechnoBuffalo’s Brandon Russell writes that Leicester University scientists have developed a color-changing fluorescent film method to capture hidden or latent prints on metal surfaces. It can be used on weapons like guns or knives, as well as surfaces like doorknobs and appliances. There will still be ways around getting caught–like wearing gloves–but the new technology will put an end to being able to wipe away prints from a crime scene.